Achild on a spinning ride at a playground has a centripetal acceleration of 0.80 m/s2. the child completes a full circle every 4.2 s.

how far from the center of the ride is the child?

0.068 m
0.085 m
0.27 m
0.36 m

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?